lOMoARcPSD| 54339004
PHLEBOTOMY PRACTICE EXAM QUESTIONS
AND ANSWERS WITH VERIFIED SOLUTIONS
LATEST UPDATED 2025|2026
Q: Where should you perform the puncture for a Simplate Bleeding Time test?
A: About 5 cm below the crease of the elbow (antecubital area).
Q: Blood collection tubes should be inverted within how many seconds of drawing the
sample?
A: Within 30 seconds.
Q: Which method uses standard vacuum tubes with culture medium for blood cultures?
A: Vacutainer method.
Q: Which of the following is not part of a blood sugar testing panel?
A: LDL (a cholesterol measure, not sugar-related).
Q: True or False: Consent laws do not apply to mentally ill patients.
A: True.
Q: Which hospital department handles blood type matching and compatibility testing?
A: The Blood Bank.
Q: When preparing a site for a blood culture using povidone-iodine, how wide should the
scrub area be?
A: 4 inches in diameter.
Q: Without a preservative like fluoride, how much can glucose levels drop in an hour?
A: [Missing answer – would you like me to find or estimate the correct percentage?]
Q: What is the first step when drawing an Arterial Blood Gas (ABG)?
A: Perform an Allen Test to check circulation.
Q: Which vein is most often used for drawing blood?
A: The median cubital vein (in the antecubital region).
Q: True or False: Inverting plain glass collection tubes can cause red blood cells to
rupture (hemolysis).
A: True.
Q: Rolling veins are most commonly found in which patients?
A: Very muscular individuals and older adults.
, lOMoARcPSD| 54339004
Q: What color tube is used for platelet count tests?
A: Lavender (contains EDTA).
Q: Which anticoagulant is commonly used in tests for blood clotting function?
A: Sodium citrate (typically in light blue tubes).
Q: True or False: Using the pinky, thumb, or index finger for capillary sticks is risky.
A: True—it can damage arteries in those fingers.
Q: During the Allen Test, pressure should be applied to which two arteries?
A: The radial and ulnar arteries.
Yellow toped tubes contain ____ Solution.
sodium citrate, SST, ACD, WBC - ANSWER✔✔ACD
What additive do light blue topped tubes hold? - ANSWER✔✔Sodium citrate
What test is not part of the coronary risk comprehensive profile ?
Blood lipid percentile score, triglycerides, fasting glucose, cholesterol - ANSWER✔✔fasting
glucose
What additive do light blue topped tubes hold?
sodium citrate, EDTA, SST, nothing - ANSWER✔✔sodium citrate
EDTA is a strong ___________.
antibody, antigen, anti-coagulant, coagulant - ANSWER✔✔anti-coagulant
Which of these tests are part of both the diabetic panel and the blood sugar panel?
Glycohemoglobin, Both glycohemoglobin & HLA-DR3, fructosamine, HlA-DR3 -
ANSWER✔✔Both glycohemoglobin & HLA-DR3
The tests included in this panel are all that are in the Executive Panel with the addition of a
Thyroxine test.
Executive Profile/T4, Executive Profile T, T4 Profile T Profile - ANSWER✔✔???
________ for a PKU screening consists of several circles in the blood should be directly
applied after performing a heel stick. - ANSWER✔✔filter paper
If performing a GTT and a patient's fasting sugar is ____ the physician or nurse should be
notified before proceeding. - ANSWER✔✔Both below 80mg/dl & above 120mg/dl
What test is a light blue topped sodium citrate tube used for?
PTT, Blood Culture, RBC, CBC - ANSWER✔✔PTT
PHLEBOTOMY PRACTICE EXAM QUESTIONS
AND ANSWERS WITH VERIFIED SOLUTIONS
LATEST UPDATED 2025|2026
Q: Where should you perform the puncture for a Simplate Bleeding Time test?
A: About 5 cm below the crease of the elbow (antecubital area).
Q: Blood collection tubes should be inverted within how many seconds of drawing the
sample?
A: Within 30 seconds.
Q: Which method uses standard vacuum tubes with culture medium for blood cultures?
A: Vacutainer method.
Q: Which of the following is not part of a blood sugar testing panel?
A: LDL (a cholesterol measure, not sugar-related).
Q: True or False: Consent laws do not apply to mentally ill patients.
A: True.
Q: Which hospital department handles blood type matching and compatibility testing?
A: The Blood Bank.
Q: When preparing a site for a blood culture using povidone-iodine, how wide should the
scrub area be?
A: 4 inches in diameter.
Q: Without a preservative like fluoride, how much can glucose levels drop in an hour?
A: [Missing answer – would you like me to find or estimate the correct percentage?]
Q: What is the first step when drawing an Arterial Blood Gas (ABG)?
A: Perform an Allen Test to check circulation.
Q: Which vein is most often used for drawing blood?
A: The median cubital vein (in the antecubital region).
Q: True or False: Inverting plain glass collection tubes can cause red blood cells to
rupture (hemolysis).
A: True.
Q: Rolling veins are most commonly found in which patients?
A: Very muscular individuals and older adults.
, lOMoARcPSD| 54339004
Q: What color tube is used for platelet count tests?
A: Lavender (contains EDTA).
Q: Which anticoagulant is commonly used in tests for blood clotting function?
A: Sodium citrate (typically in light blue tubes).
Q: True or False: Using the pinky, thumb, or index finger for capillary sticks is risky.
A: True—it can damage arteries in those fingers.
Q: During the Allen Test, pressure should be applied to which two arteries?
A: The radial and ulnar arteries.
Yellow toped tubes contain ____ Solution.
sodium citrate, SST, ACD, WBC - ANSWER✔✔ACD
What additive do light blue topped tubes hold? - ANSWER✔✔Sodium citrate
What test is not part of the coronary risk comprehensive profile ?
Blood lipid percentile score, triglycerides, fasting glucose, cholesterol - ANSWER✔✔fasting
glucose
What additive do light blue topped tubes hold?
sodium citrate, EDTA, SST, nothing - ANSWER✔✔sodium citrate
EDTA is a strong ___________.
antibody, antigen, anti-coagulant, coagulant - ANSWER✔✔anti-coagulant
Which of these tests are part of both the diabetic panel and the blood sugar panel?
Glycohemoglobin, Both glycohemoglobin & HLA-DR3, fructosamine, HlA-DR3 -
ANSWER✔✔Both glycohemoglobin & HLA-DR3
The tests included in this panel are all that are in the Executive Panel with the addition of a
Thyroxine test.
Executive Profile/T4, Executive Profile T, T4 Profile T Profile - ANSWER✔✔???
________ for a PKU screening consists of several circles in the blood should be directly
applied after performing a heel stick. - ANSWER✔✔filter paper
If performing a GTT and a patient's fasting sugar is ____ the physician or nurse should be
notified before proceeding. - ANSWER✔✔Both below 80mg/dl & above 120mg/dl
What test is a light blue topped sodium citrate tube used for?
PTT, Blood Culture, RBC, CBC - ANSWER✔✔PTT
